4y^2+9=6y

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Solution for 4y^2+9=6y equation:


Simplifying
4y2 + 9 = 6y

Reorder the terms:
9 + 4y2 = 6y

Solving
9 + 4y2 = 6y

Solving for variable 'y'.

Reorder the terms:
9 + -6y + 4y2 = 6y + -6y

Combine like terms: 6y + -6y = 0
9 + -6y + 4y2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
2.25 + -1.5y + y2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + -1.5y + -2.25 + y2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + -1.5y + y2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + -1.5y + y2 = 0 + -2.25
-1.5y + y2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
-1.5y + y2 = -2.25

The y term is -1.5y.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5y + 0.5625 + y2 = -2.25 + 0.5625

Reorder the terms:
0.5625 + -1.5y + y2 = -2.25 + 0.5625

Combine like terms: -2.25 + 0.5625 = -1.6875
0.5625 + -1.5y + y2 = -1.6875

Factor a perfect square on the left side:
(y + -0.75)(y + -0.75) = -1.6875

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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